Home / 72,012.04-99,376.58-40,180.94

Finding the Fourth Proportional to 72,012.04, 99,376.58 and 40,180.94

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Solution

The fourth proportional to 72,012.04, 99,376.58 and 40,180.94 is: 55,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,012.04 : 99,376.58 = 40,180.94 : x
  2. Step 2: Convert to fraction form
    72,012.04/99,376.58 = 40,180.94/x
  3. Step 3: Cross multiply
    72,012.04x = 99,376.58 × 40,180.94
  4. Step 4: Simplify right side
    72,012.04x = 3,993,044,398.39
  5. Step 5: Solve for x
    x = 3,993,044,398.39/72,012.04
  6. Step 6: Final answer
    x = 55,449.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.